./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:25:16,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:25:16,818 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 10:25:16,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:25:16,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:25:16,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:25:16,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:25:16,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:25:16,844 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:25:16,844 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:25:16,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:25:16,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:25:16,844 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:25:16,844 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 10:25:16,844 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 10:25:16,844 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 10:25:16,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:25:16,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:25:16,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:25:16,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 10:25:16,846 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 10:25:16,846 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2024-12-02 10:25:17,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:25:17,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:25:17,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:25:17,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:25:17,086 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:25:17,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2024-12-02 10:25:19,716 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/data/2aac72eed/4e55702eb8d34213bf4dbc569cae7806/FLAG390186013 [2024-12-02 10:25:19,970 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:25:19,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2024-12-02 10:25:19,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/data/2aac72eed/4e55702eb8d34213bf4dbc569cae7806/FLAG390186013 [2024-12-02 10:25:20,312 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/data/2aac72eed/4e55702eb8d34213bf4dbc569cae7806 [2024-12-02 10:25:20,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:25:20,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:25:20,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:25:20,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:25:20,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:25:20,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35797742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20, skipping insertion in model container [2024-12-02 10:25:20,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:25:20,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:25:20,555 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:25:20,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2024-12-02 10:25:20,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] [2024-12-02 10:25:20,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] [2024-12-02 10:25:20,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:25:20,629 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:25:20,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20 WrapperNode [2024-12-02 10:25:20,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:25:20,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:25:20,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:25:20,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:25:20,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,668 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 55, calls inlined = 84, statements flattened = 555 [2024-12-02 10:25:20,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:25:20,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:25:20,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:25:20,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:25:20,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,695 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:25:20,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:25:20,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:25:20,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:25:20,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:25:20,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (1/1) ... [2024-12-02 10:25:20,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 10:25:20,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:20,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 10:25:20,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 10:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:25:20,839 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:25:20,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:25:21,187 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-12-02 10:25:21,188 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:25:21,199 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:25:21,199 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:25:21,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:25:21 BoogieIcfgContainer [2024-12-02 10:25:21,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:25:21,200 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 10:25:21,200 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 10:25:21,206 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 10:25:21,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:25:21,207 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 10:25:20" (1/3) ... [2024-12-02 10:25:21,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50b7ea9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:25:21, skipping insertion in model container [2024-12-02 10:25:21,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:25:21,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:25:20" (2/3) ... [2024-12-02 10:25:21,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50b7ea9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:25:21, skipping insertion in model container [2024-12-02 10:25:21,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:25:21,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:25:21" (3/3) ... [2024-12-02 10:25:21,209 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2024-12-02 10:25:21,258 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 10:25:21,258 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 10:25:21,258 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 10:25:21,258 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 10:25:21,258 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 10:25:21,259 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 10:25:21,259 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 10:25:21,259 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 10:25:21,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2024-12-02 10:25:21,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:25:21,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:25:21,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,299 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 10:25:21,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2024-12-02 10:25:21,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:25:21,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:25:21,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,311 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 10:25:21,311 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet11#1;test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet12#1;test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet13#1;test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:25:21,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 10:25:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712055521] [2024-12-02 10:25:21,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,399 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:25:21,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,428 INFO L85 PathProgramCache]: Analyzing trace with hash 493301525, now seen corresponding path program 1 times [2024-12-02 10:25:21,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499037696] [2024-12-02 10:25:21,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:21,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 10:25:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499037696] [2024-12-02 10:25:21,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499037696] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:21,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839393920] [2024-12-02 10:25:21,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:21,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:21,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:21,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:25:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:21,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:25:21,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:21,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:21,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839393920] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:21,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:25:21,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 10:25:21,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123796720] [2024-12-02 10:25:21,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:21,581 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 10:25:21,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 10:25:21,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:25:21,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:25:21,603 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:21,660 INFO L93 Difference]: Finished difference Result 310 states and 414 transitions. [2024-12-02 10:25:21,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 414 transitions. [2024-12-02 10:25:21,666 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2024-12-02 10:25:21,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 290 states and 393 transitions. [2024-12-02 10:25:21,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 290 [2024-12-02 10:25:21,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 290 [2024-12-02 10:25:21,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 290 states and 393 transitions. [2024-12-02 10:25:21,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 10:25:21,676 INFO L218 hiAutomatonCegarLoop]: Abstraction has 290 states and 393 transitions. [2024-12-02 10:25:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states and 393 transitions. [2024-12-02 10:25:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 287. [2024-12-02 10:25:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 287 states have (on average 1.3554006968641115) internal successors, (389), 286 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 389 transitions. [2024-12-02 10:25:21,711 INFO L240 hiAutomatonCegarLoop]: Abstraction has 287 states and 389 transitions. [2024-12-02 10:25:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:25:21,714 INFO L425 stractBuchiCegarLoop]: Abstraction has 287 states and 389 transitions. [2024-12-02 10:25:21,715 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 10:25:21,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 287 states and 389 transitions. [2024-12-02 10:25:21,717 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2024-12-02 10:25:21,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:25:21,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:25:21,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,717 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,718 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 10:25:21,718 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet11#1;test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet12#1;test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet13#1;test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:25:21,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 10:25:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263124832] [2024-12-02 10:25:21,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,730 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:25:21,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,742 INFO L85 PathProgramCache]: Analyzing trace with hash -678805745, now seen corresponding path program 1 times [2024-12-02 10:25:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245836051] [2024-12-02 10:25:21,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:21,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 10:25:21,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245836051] [2024-12-02 10:25:21,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245836051] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:21,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167601681] [2024-12-02 10:25:21,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:21,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:21,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:21,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:25:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:21,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:25:21,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:21,821 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:21,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167601681] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:21,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:25:21,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 10:25:21,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815979192] [2024-12-02 10:25:21,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:21,831 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 10:25:21,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 10:25:21,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:25:21,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:25:21,832 INFO L87 Difference]: Start difference. First operand 287 states and 389 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:25:21,929 INFO L93 Difference]: Finished difference Result 401 states and 526 transitions. [2024-12-02 10:25:21,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 401 states and 526 transitions. [2024-12-02 10:25:21,932 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 283 [2024-12-02 10:25:21,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 401 states to 401 states and 526 transitions. [2024-12-02 10:25:21,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2024-12-02 10:25:21,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2024-12-02 10:25:21,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 526 transitions. [2024-12-02 10:25:21,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 10:25:21,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 401 states and 526 transitions. [2024-12-02 10:25:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 526 transitions. [2024-12-02 10:25:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-12-02 10:25:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 401 states have (on average 1.311720698254364) internal successors, (526), 400 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 526 transitions. [2024-12-02 10:25:21,954 INFO L240 hiAutomatonCegarLoop]: Abstraction has 401 states and 526 transitions. [2024-12-02 10:25:21,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:25:21,955 INFO L425 stractBuchiCegarLoop]: Abstraction has 401 states and 526 transitions. [2024-12-02 10:25:21,955 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 10:25:21,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 401 states and 526 transitions. [2024-12-02 10:25:21,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 283 [2024-12-02 10:25:21,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:25:21,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:25:21,959 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,959 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:21,959 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 10:25:21,960 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet11#1;test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp~1#1);" "havoc test_#t~nondet12#1;test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet13#1;test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet14#1;test_~tmp___1~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret15#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret15#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:25:21,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 10:25:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755388310] [2024-12-02 10:25:21,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,971 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:25:21,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1202057351, now seen corresponding path program 1 times [2024-12-02 10:25:21,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:21,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727709064] [2024-12-02 10:25:21,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:21,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:21,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:22,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:25:22,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1031281936, now seen corresponding path program 1 times [2024-12-02 10:25:22,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:25:22,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279976227] [2024-12-02 10:25:22,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:22,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:22,022 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:22,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:25:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:22,995 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:25:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:25:23,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 10:25:23 BoogieIcfgContainer [2024-12-02 10:25:23,043 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 10:25:23,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:25:23,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:25:23,043 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:25:23,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:25:21" (3/4) ... [2024-12-02 10:25:23,046 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 10:25:23,082 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:25:23,082 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:25:23,083 INFO L158 Benchmark]: Toolchain (without parser) took 2768.86ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.2MB in the beginning and 110.8MB in the end (delta: -18.6MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,083 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:25:23,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.85ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.22ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,084 INFO L158 Benchmark]: Boogie Preprocessor took 46.01ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 68.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:25:23,085 INFO L158 Benchmark]: RCFGBuilder took 483.85ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 42.9MB in the end (delta: 25.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,085 INFO L158 Benchmark]: BuchiAutomizer took 1842.37ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 42.9MB in the beginning and 113.6MB in the end (delta: -70.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,085 INFO L158 Benchmark]: Witness Printer took 39.24ms. Allocated memory is still 201.3MB. Free memory was 113.6MB in the beginning and 110.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:25:23,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.85ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 73.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.22ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.01ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 68.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 483.85ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 42.9MB in the end (delta: 25.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1842.37ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 42.9MB in the beginning and 113.6MB in the end (delta: -70.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Witness Printer took 39.24ms. Allocated memory is still 201.3MB. Free memory was 113.6MB in the beginning and 110.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] - GenericResultAtLocation [Line: 264]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] - GenericResultAtLocation [Line: 468]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] - GenericResultAtLocation [Line: 834]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] - GenericResultAtLocation [Line: 943]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 401 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 347 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 718 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 290 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 428 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 208]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int methAndRunningLastTime ; [L98] int waterLevel = 1; [L99] int methaneLevelCritical = 0; [L268] int pumpRunning = 0; [L269] int systemActive = 1; [L638] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L970] int retValue_acc ; [L973] retValue_acc = 1 [L974] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] RET, EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L911] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] RET __utac_acc__Specification2_spec__1() [L912] CALL test() [L197] int splverifierCounter ; [L198] int tmp ; [L199] int tmp___0 ; [L200] int tmp___1 ; [L201] int tmp___2 ; [L204] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L208] COND TRUE splverifierCounter < 4 [L214] tmp = __VERIFIER_nondet_int() [L216] COND FALSE !(\read(tmp)) [L224] tmp___0 = __VERIFIER_nondet_int() [L226] COND FALSE !(\read(tmp___0)) [L234] tmp___2 = __VERIFIER_nondet_int() [L236] COND FALSE !(\read(tmp___2)) [L242] tmp___1 = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp___1)) [L253] CALL timeShift() [L275] COND FALSE !(\read(pumpRunning)) [L282] COND TRUE \read(systemActive) [L284] CALL processEnvironment() [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L348] CALL processEnvironment__wrappee__highWaterSensor() [L304] int tmp ; [L307] COND TRUE ! pumpRunning [L309] CALL, EXPR isHighWaterLevel() [L427] int retValue_acc ; [L428] int tmp ; [L429] int tmp___0 ; [L433] CALL, EXPR isHighWaterSensorDry() [L178] int retValue_acc ; [L181] COND TRUE waterLevel < 2 [L182] retValue_acc = 1 [L183] return (retValue_acc); [L433] RET, EXPR isHighWaterSensorDry() [L433] tmp = isHighWaterSensorDry() [L435] COND TRUE \read(tmp) [L436] tmp___0 = 0 [L440] retValue_acc = tmp___0 [L441] return (retValue_acc); [L309] RET, EXPR isHighWaterLevel() [L309] tmp = isHighWaterLevel() [L311] COND FALSE !(\read(tmp)) [L317] FCALL processEnvironment__wrappee__base() [L348] RET processEnvironment__wrappee__highWaterSensor() [L284] RET processEnvironment() [L290] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L137] int retValue_acc ; [L140] retValue_acc = methaneLevelCritical [L141] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L290] RET __utac_acc__Specification2_spec__2() [L253] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 208]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L98] int waterLevel = 1; [L99] int methaneLevelCritical = 0; [L268] int pumpRunning = 0; [L269] int systemActive = 1; [L638] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; [L922] int tmp ; [L926] FCALL select_helpers() [L927] FCALL select_features() [L928] CALL, EXPR valid_product() [L970] int retValue_acc ; [L973] retValue_acc = 1 [L974] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] RET, EXPR valid_product() [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L932] FCALL setup() [L933] CALL runTest() [L911] CALL __utac_acc__Specification2_spec__1() [L58] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] RET __utac_acc__Specification2_spec__1() [L912] CALL test() [L197] int splverifierCounter ; [L198] int tmp ; [L199] int tmp___0 ; [L200] int tmp___1 ; [L201] int tmp___2 ; [L204] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L208] COND TRUE splverifierCounter < 4 [L214] tmp = __VERIFIER_nondet_int() [L216] COND FALSE !(\read(tmp)) [L224] tmp___0 = __VERIFIER_nondet_int() [L226] COND FALSE !(\read(tmp___0)) [L234] tmp___2 = __VERIFIER_nondet_int() [L236] COND FALSE !(\read(tmp___2)) [L242] tmp___1 = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp___1)) [L253] CALL timeShift() [L275] COND FALSE !(\read(pumpRunning)) [L282] COND TRUE \read(systemActive) [L284] CALL processEnvironment() [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L348] CALL processEnvironment__wrappee__highWaterSensor() [L304] int tmp ; [L307] COND TRUE ! pumpRunning [L309] CALL, EXPR isHighWaterLevel() [L427] int retValue_acc ; [L428] int tmp ; [L429] int tmp___0 ; [L433] CALL, EXPR isHighWaterSensorDry() [L178] int retValue_acc ; [L181] COND TRUE waterLevel < 2 [L182] retValue_acc = 1 [L183] return (retValue_acc); [L433] RET, EXPR isHighWaterSensorDry() [L433] tmp = isHighWaterSensorDry() [L435] COND TRUE \read(tmp) [L436] tmp___0 = 0 [L440] retValue_acc = tmp___0 [L441] return (retValue_acc); [L309] RET, EXPR isHighWaterLevel() [L309] tmp = isHighWaterLevel() [L311] COND FALSE !(\read(tmp)) [L317] FCALL processEnvironment__wrappee__base() [L348] RET processEnvironment__wrappee__highWaterSensor() [L284] RET processEnvironment() [L290] CALL __utac_acc__Specification2_spec__2() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR isMethaneLevelCritical() [L137] int retValue_acc ; [L140] retValue_acc = methaneLevelCritical [L141] return (retValue_acc); [L68] RET, EXPR isMethaneLevelCritical() [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 [L290] RET __utac_acc__Specification2_spec__2() [L253] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 10:25:23,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:25:23,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:25:23,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c63bef-a117-41a3-a505-bdcf3ab607a4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)